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Green algae

Rawle Plants

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Biology
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plants
Algae
Green algae
Rhynia
Charophyta
Huaca Prieta

This week?s Bio seminar Friday, Feb. 13, DV2082?at 12pm Jarturo Alvarez-Buylla,?University of California. Embryonic origins of adult neural stem cells 1 Lecture 12: From water to land Ancient plants From water to land but how? Putting life cycles into a phylogenetic context Was water always that important? 2 When did you have popcorn the last time? 3 Corn is ancient Evolved from Teosinte 4 http://hila.webcentre.ca/research/teosinte/ Pop corn is ancient too 5 Huaca Prieta, Peru Grobman, A. & Bonavia, D. 2012. Preceramic maize from Paredones and Huaca Prieta, Peru. Proceedings of the National Academy of Sciences, It all began with green algae 6 http://www.astrobio.net/images/galleryimages_images/Gallery_Image_7263.jpg Green algae 725 mya

Chp 25 Bio

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Biology
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Biology
Eukaryotes
Protista
Photosynthesis
microbiology
organelles
Algae
Archaeplastida
Alveolate
Plastid
Chromalveolate
Green algae

Chapter 25: The Origin and Diversification of Eukaryotes Overview: Shape Changers Because eukaryotes have internal membranes, they can perform a wide variety of tasks that prokaryotes are unable to perform. An example is a Didinium eating a larger Paramecium The cytoskeleton allows the Didinium to change its shape enough to engulf the Paramecium Concept 25.1 Eukaryotes arose by endosymbiosis more than 1.8 billion years ago Endosymbiosis in Eukaryotic Evolution There is now considerable evidence that much protist diversity has its origins in endosymbiosis Endosymbiosis is the process in which a unicellular organism engulfs another cell, which becomes an endosymbiont and then organelle in the host cell Mitochondria evolved by endosymbiosis of an aerobic prokaryote

algaefungi

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Biology
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Biology
reproduction
Green algae
Tree of life
Germ cells
microbiology
Ascomycota
Multicellular organism
Volvox
Algae
Asexual reproduction
Isogamy

Bio104 Laboratory ? Student?s Guide John Jay College, C.U.N.Y Lab #5 ? Page 1 Lab #5: Green Algae, Fungi, and Lichens I. More Protista a. Continuing from last week, this will lab will explore the Domain of Eukarya. Remember that the group of organisms commonly called ?protists? is not an actual taxon ? it?s a collection of many phyla. b. Some of the protists that we will examine today are the green algae. These single-celled organisms have a common ancestor with plants, and present-day algae share many features with the ancestor of plants. All green algae are technically unicellular organisms, but some form colonies with an impressive degree of organization.

microbio slide

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Biology
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Biology
microbiology
Green algae
bacteria
Eukaryotes
Cell Biology
Tree of life
Protist
Unikont
Cyanobacteria
Algae
Plasmodium
health

ESTIMATING SIZE OF OBJECTS AND MAKING A WET MOUNT Oscillatoria, 10X Oscillatoria, 20X Oscillatoria, 40X Nucleus A cyanobacterium; prokaryote; photosynthetic; contains chlorophyll and a blue pigment, phycocyanin; long unbranched filaments of cells; no flagella, but can move by means of a sliding motion. Wet Mount. Human cheek cell smear, stained with methylene blue. BACTERIA Cyanobacteria, Nostoc, 40X Cyanobacteria, Gloecapsa, 40X

algeafungi

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Biology
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Biology
reproduction
Green algae
Tree of life
Germ cells
microbiology
Ascomycota
Multicellular organism
Volvox
Algae
Asexual reproduction
Isogamy

Bio104 Laboratory ? Student?s Guide John Jay College, C.U.N.Y Lab #5 ? Page 1 Lab #5: Green Algae, Fungi, and Lichens I. More Protista a. Continuing from last week, this will lab will explore the Domain of Eukarya. Remember that the group of organisms commonly called ?protists? is not an actual taxon ? it?s a collection of many phyla. b. Some of the protists that we will examine today are the green algae. These single-celled organisms have a common ancestor with plants, and present-day algae share many features with the ancestor of plants. All green algae are technically unicellular organisms, but some form colonies with an impressive degree of organization.

Protista Notes

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Biology
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Biology
Protista
microbiology
Protist
Protozoa
Slime mold
Multicellular organism
Microorganism
Algae
Asexual reproduction
Unicellular organism
Green algae

19.1: Protists The World of Protists What is a Protist? Kingdom Protista contains the most diverse group of organisms of all kingdoms Most are unicellular (diatoms), but some are multicellular (giant kelp). Some are heterotrophs, some are autotrophs and others are both. The characteristic that all protists share is that they are eukaryotes Protists are divided into animal-like protists, funguslike protists and plantlike protists. Protozoa: animal-like protist, all are unicellular Algae: plant-like protists, do not have roots, stems and leaves Unicellular algae produce most of the world?s oxygen and are the basis for aquatic food chains Fungus-like protists are able to move at some point in their life and do not have chitin in their cell walls What is a protozoan?

Origins of Eukaryotic Diversity

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Biology
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Biology
Protista
reproduction
organelles
Plant physiology
Photosynthesis
Protist
Algae
Brown algae
Green algae
Eukaryote
Slime mold
Eukaryotic Diversity Campbell AP Biology

Overview: AWorld in a Drop of Water ? In the past, taxonomists classified all protists in a single kingdom, Protista. ? However, it is now clear that Protista is in fact paraphyletic. ? Some protists are more closely related to plants, fungi, or animals than they are to other protists. ? As a result, the kingdom Protista has been abandoned. ? Various lineages are recognized as kingdoms in their own right. ? Scientists still use the convenient term protist informally to refer to eukaryotes that are not plants, animals, or fungi. Concept 28.1 Protists are an extremely diverse assortment of eukaryotes ? Protists exhibit more structural and functional diversity than any other group of organisms.
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